Efficacy: Purple horn leaves contain many nutrients such as protein, fat, carbohydrate, crude fiber, calcium, phosphorus and iron, especially rich in minerals and vitamins. Among them, carotene, vitamin C and calcium are the most abundant, which is very beneficial for the elderly to supplement nutrition and keep fit. Because the purple horn leaves are cold and sweet, they have the effects of clearing heat and intestines, cooling blood and detoxifying, which is beneficial to defecation and relieving summer heat. It is beneficial for the elderly to eat this dish while it is hot, and it also has a preventive effect on habitual constipation of the elderly.